I have huge ear holes! Seriously - LARGE, deep, gaping ear holes! I have been using in ear monitors with my live bands since 2012 or so, and I always had issues with my Shure SE215 ear buds not sealing properly. Move my jaw while singing and outside sound leaks in, difficult to get them to reseal after set break, etc.
I have not been willing to invest the money into custom molds. I took a few years off from live performance and when I came back, I did some research to try to find some foams that would actually seal properly in my deep, cavernous ear holes.
I found Comply Professional Series, size Large of course, and have finally found something that does the job! I get a good seal right from the get go, and when I remove my ear buds on break and put them back in for second set, they reseal wonderfully.
if you have serious man hole sized ear holes like I do, and you have been struggling to find ear bud foams that will seal properly, look no further - Comply Professional Series is the bomb diggity! The extra length of these foams is just what I needed.